What Other World Of MMOs Can Wargaming.net Create?

Wargaming.net has been on an incredible roll over the last few years. The developers have released, or are developing, a number of titles in the military mmofps genre that have been incredibly popular. Their signature World of Tanks mmo singlehandedly brought armored warfare to the first person shooter masses, and the company has not looked back since. They've broadened their horizons to the sea (World of Warships) and the air (World of Warplanes), but I think that there are other theaters of war that they can incorporate into their stable of mmo games. What other world of mmos can Wargaming.net create?